Document feeder and image forming apparatus

ABSTRACT

A cover that covers side surfaces of a document conveyance path and a paper feeder in a direction orthogonal to a document conveyance direction and a notifier that notifies information on a document placement section are included. The cover has a first side surface disposed along the document conveyance direction and a second side surface disposed from an end of the first side surface on the paper feeder side toward the document placement section. The notifier includes a displayer that displays the information by light. The displayer includes a first displayer disposed on the first side surface and a second displayer disposed on the second side surface toward the document placement section. The first displayer and the second displayer each have a horizontal length that is longer than a vertical length.

BACKGROUND OF THE INVENTION Field of the Invention

The present invention relates to a document feeder and an image formingapparatus equipped with the document feeder.

Description of the Background Art

Conventionally, an image forming apparatus equipped with a documentfeeder (automatic document feeder (ADF)) is known. The document feederis disposed above an operation section (operation panel) operated by anoperator. A document placement section for placing a document isdisposed at the rear of the operation panel when viewed from theoperation panel side.

Therefore, the document placed on the document placement section issomewhat difficult for the operator to see. If the operator tilts thedocument feeder upward and opens it without noticing the document set orleft on the document placement section, the document may fall from thedocument placement section.

Japanese Unexamined Patent Application Publication No. 61-140439discloses a technique in which, in a state where a document is set on aglass document table of an image forming apparatus, when a document isset on a document placement section, a notification lamp disposed on anoperation panel is lit.

However, the notification lamp disclosed in Japanese Unexamined PatentApplication Publication No. 61-140439 is disposed on the operation paneland is positioned away from the document placement section. As a result,even when the notification lamp is lit, the operator may overlook thelighting of the notification lamp, or even when the operator notices thelighting of the notification lamp, it may be difficult to understand theintent of the information notified by the notification lamp.

An object of the present invention is to guide the operator's line ofsight to the document placement section by the notifier, and is to makeit easier for the operator to understand that the information notifiedby the notifier is information on the document placement section and theintent of the notified information.

SUMMARY OF THE INVENTION

A document feeder of the present invention includes a document placementsection where a plurality of documents can be placed, a documentconveyance path that conveys documents placed on the document placementsection, a paper feeder that feeds the documents placed on the documentplacement section to the document conveyance path, a cover that coversside surfaces of the document conveyance path and the paper feeder in adirection orthogonal to a document conveyance direction, and a notifierthat notifies information on the document placement section. The coverhas a first side surface disposed along the document conveyancedirection and a second side surface disposed from an end of the firstside surface on the paper feeder side toward the document placementsection.

The notifier includes a displayer that displays the information bylight. The displayer includes a first displayer disposed on the firstside surface and a second displayer disposed on the second side surfacetoward the document placement section. The first displayer and thesecond displayer each have a horizontal length that is longer than avertical length.

According to the above configuration, a displayer that notifiesinformation on a document placement section by light is provided on thefirst side surface and the second side surface of a cover that coversthe side surfaces of a document conveyance path and a paper feeder in adirection perpendicular to a document conveyance direction. In addition,the first displayer disposed on the first side surface and the seconddisplayer disposed on the second side surface toward the documentplacement section each have a horizontal length that is longer than avertical length. As a result, the displayer of the notifier can guidethe operator's line of sight to the document placement section. This canmake it easier for the operator to understand that the informationnotified by the notifier is information on the document placementsection and the intent of the notified information.

In the first configuration above, the first side surface and the secondside surface are formed to be continuous, and the first displayer andthe second displayer may be integrally formed (second configuration).

According to the above configuration, the first displayer and the seconddisplayer constituting the displayer are integrally formed. This makesit easier to guide the operator's line of sight to the documentplacement section disposed at the end in the direction in which thedisplayer extends.

In the first configuration above, the first displayer and the seconddisplayer may be individually disposed on the first side surface and thesecond side surface, respectively (third configuration).

According to the above configuration, the first displayer and the seconddisplayer, which constitute the displayer, are individually disposed onthe first side surface and the second side surface. As a result, theoperator's line of sight can be easily guided to the document placementsection that is disposed at the end in the direction in which the firstdisplayer and the second displayer are lined up.

In any of the first to third configurations above, the second sidesurface may have a recess that emits light from the second displayer toa document placement section side in an area adjacent to the seconddisplayer and closer to the document placement section than the seconddisplayer (fourth configuration).

According to the above configuration, the second side surface of thecover has a recess that emits light from the second displayer to thedocument placement section side. The light from the displayer is emittedto the document placement section side, and thus the range in which thelight can be seen can be widened, and the visibility of the notifier canbe improved. In addition, the gradation of light and dark caused bylight hitting the recess can improve the visibility of the notifier.

In any of the first to fourth configurations above, a top surface coverthat covers a top surface side of the paper feeder and the documentconveyance path may be further included, and the top surface cover mayhave a top surface cover end that constitutes an upper end of a documentpassing portion through which a document fed by the paper feeder passes,and the displayer may be substantially disposed on an extension line ofthe top surface cover end (fifth configuration).

According to the above configuration, the displayer is substantiallydisposed on an extension line of the top surface cover end. As a result,the operator's line of sight can be guided from the displayer to thedocument placement section along the top surface cover end. This canmake it easy for the operator to understand that the informationnotified by the notifier is information on the document placementsection.

In any of the first to fifth configurations above, the notifier mayinclude a light source that emits light to the displayer, and thedisplayer may have translucency that allows light from the light sourceto pass through, and have a protrusion that protrudes outward from anouter surface of the cover (sixth configuration).

According to the above configuration, the displayer has translucencythat allows light from the light source to pass through, and has aprotrusion that protrudes outward from an outer surface of the cover.This makes it easy to see the light of the displayer not only from theside but also from above.

In the sixth configuration above, the displayer may have a minuteunevenness that diffusely reflects light from the light source (seventhconfiguration).

According to the above configuration, the displayer has a minuteunevenness that diffusely reflects light from the light source. As aresult, light can be emitted from the entire displayer, and thevisibility of the displayer can be improved.

In the sixth or seventh configuration above, the notifier may include asupport case for attaching the light source and the displayer to thecover, and the support case may have a first opening to which thedisplayer is attached, and a wall that blocks light from the lightsource in such a manner that the light is not emitted from other thanthe first opening (eighth configuration).

According to the above configuration, the support case has a firstopening to which the displayer is attached, and a wall that blocks lightfrom the light source in such a manner that the light is not emittedfrom other than the first opening. As a result, it is possible tosuppress light from the light source from leaking into the interior ofthe cover.

In the eighth configuration above, the support case may have a secondopening to which the light source is attached, and the second openingmay be provided at a position facing the first opening (ninthconfiguration).

According to the above configuration, the second opening to which thelight source is attached is provided at a position facing the firstopening to which the displayer is attached. As a result, the lightsource can be easily installed and replaced, and light from the lightsource can be prevented from leaking into the interior of the cover.

An image forming apparatus of the present invention includes thedocument feeder of any of the first to ninth configurations above (tenthconfiguration).

According to the above configuration, the displayer of the notifier canguide the operator's line of sight to the document placement section.This can make it easier for the operator to understand that theinformation notified by the notifier is information on the documentplacement section and the intent of the notified information.

According to the document feeder and the image forming apparatus of thepresent invention, the displayer of the notifier can guide theoperator's line of sight to the document placement section. This canmake it easier for the operator to understand that the informationnotified by the notifier is information on the document placementsection and the intent of the notified information.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of an image forming apparatus to whicha document feeder according to an embodiment is applied.

FIG. 2 is a perspective view of the document feeder.

FIG. 3 is a perspective view of a part of a cover being cut off in thevicinity of a notifier.

FIG. 4 is a cross-sectional view of a state where the displayer of thenotifier is cut horizontally, seen from above.

FIG. 5 is a perspective view of the cover and a second displayer, seenfrom diagonally behind.

FIG. 6 is an exploded perspective view illustrating a state ofassembling a support case, a light guide, and a light source of thenotifier.

FIG. 7 is a perspective view illustrating a state of assembling thesupport case, light guide, and light source of the notifier, which arepartially cut off.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1

An embodiment of the present invention will now be described withreference to the accompanying drawings. FIG. 1 is a cross-sectional viewof an image forming apparatus 1 to which a document feeder 100 accordingto an embodiment 1 is applied. The image forming apparatus 1 reads andprints color and monochrome images, and has a print function to printimages on a recording paper, a scanner function to read images of adocument, and a copy function to read images of a document and printimages of the document on the recording paper.

In the following figures, an arrow F indicates the front surface side ofthe image forming apparatus 1, and an arrow B indicates the rear surfaceside. An arrow R indicates the rightward side of the image formingapparatus 1, and an arrow L indicates the leftward side of the imageforming apparatus 1. An arrow U indicates the upward side of the imageforming apparatus 1, and an arrow D indicates the downward side of theimage forming apparatus 1.

The image forming apparatus 1 includes a document reader 2, a documentfeeder 100, a process unit 4, a paper feed cassette 5, and a paperconveyance device 7. The process unit 4, paper feed cassette 5, andpaper conveyance device 7 are built into a main body 8 of the imageforming apparatus 1. The document reader 2 and the document feeder 100are mounted on the upper side of the main body 8 of the image formingapparatus 1. An operation panel 9 is provided at the end of the frontside (standing side of a user) of the document reader 2 (see FIG. 2).The operation panel 9 is operated by the user to selectively operate theprint, scanner, and copy functions, or the like of the image formingapparatus 1, and to select either a color image or a monochrome image.

A displayer 85 of a notifier 80 is disposed on a cover 71 of thedocument feeder 100. The notifier 80 notifies the user of information ona document placement section 60 by causing the displayer 85 to glow.

In the process unit 4, in order to print a color image using colors ofblack (K), cyan (C), magenta (M), and yellow (Y), or a monochrome imageusing monochrome (e.g., black) on a recording paper, four developingunits 12, four photosensitive drums 13, four drum cleaning devices 14,and four charging rollers 15 are provided, which correspond to black,cyan, magenta, and yellow, respectively, and constitute four imagestations Pa, Pb, Pc, and Pd. In addition, an optical scanning device 11is provided below each of the image forming stations Pa, Pb, Pc and Pd.

In each of the image forming stations Pa, Pb, Pc and Pd, after removingand collecting residual toner on the surface of the photosensitive drum13 by the drum cleaning device 14, the surface of the photosensitivedrum 13 is uniformly charged to a predetermined potential by thecharging roller 15, the surface of the photosensitive drum 13 is exposedby the optical scanning device 11 to form an electrostatic latent imageon the surface of the photosensitive drum 13, the electrostatic latentimage on the surface of the photosensitive drum 13 is developed by thedeveloping unit 12, and a toner image is formed on the surface of thephotosensitive drum 13. As a result, a toner image of each color isformed on the surface of each photosensitive drum 13.

Then, while the intermediate transfer belt 21 is moved circumferentiallyin an arrow direction C, the residual toner on the intermediate transferbelt 21 is removed and collected by a belt cleaning device 22, and thenthe toner images of each color on the surface of each photosensitivedrum 13 are transferred to the intermediate transfer belt 21 one afteranother and superimposed to form a color toner image on the intermediatetransfer belt 21.

A nip area is formed between the intermediate transfer belt 21 and atransfer roller 23 a of a secondary transfer device 23, and while arecording paper conveyed through a paper conveyance path S is sandwichedand conveyed in the nip area, the color toner image on the surface ofthe intermediate transfer belt 21 is transferred onto the recordingpaper. Then, the recording paper is sandwiched between a heating roller18 and a fixing roller 19 of a fixing device 17, and heated andpressurized to fix the color toner image on the recording paper.

In the paper conveyance device 7, the recording paper is pulled out ofthe paper feed cassette 5 by a pickup roller 24, conveyed through thepaper conveyance path S, passed through the secondary transfer device 23and the fixing device 17, and discharged into a paper discharge tray 39via respective paper discharge rollers 25. Provided on the paperconveyance path S are respective resist rollers 27 that temporarily stopthe recording paper and align the leading edge of the recording paperand restart conveyance of the recording paper in time with the transfertiming of the color toner image in the nip area between the intermediatetransfer belt 21 and the transfer roller 23 a, respective conveyancerollers 28 that facilitate conveyance of the recording paper, respectivepaper discharge rollers 25, and the like.

Next, a schematic configuration of the document reader 2 and thedocument feeder 100 mounted on the upper part of the main body 8 of theimage forming apparatus 1 will be described. The document feeder 100 isaxially supported on one side of the rear surface side by the documentreader 2, and the front surface side of the document feeder 100 isopened and closed so as to be raised and lowered. When the documentfeeder 100 is opened, a document read glass 31 and a document placementglass 32 of the document reader 2 are opened, and a document can beplaced on the document placement glass 32.

In the document reader 2, first and second scanners 33 and 34 are movedwhile maintaining a predetermined speed relation with each other, alight source 33 a of the first scanner 33 illuminates the document onthe document placement glass 32, respective mirrors 33 b and 34 b of thefirst and second scanners 33 and 34 guide the reflected light from thedocument to an imaging lens 36, and the imaging lens 36 forms an imageof the document on a charge coupled device (CCD) 37. The CCD 37repeatedly reads the image of the document in the main scanningdirection and outputs image data indicating the image of the document.

The document reader 2 can read images of a document being conveyed bythe document feeder 100 as well as a stationary document. In this case,the first scanner 33 is moved to a reading position below the documentread glass 31, the second scanner 34 is positioned in accordance withthe position of the first scanner 33, and in this state, conveyance ofthe document by the document feeder 100 is started.

The document feeder 100 feeds a plurality of documents placed on thedocument placement section 60 into a document conveyance path 61 one byone from the top by the pickup roller 41, a paper feed roller 42, and aseparation roller 43 that constitute a paper feeder 62. (Since theseparation roller 43 rotates in a direction opposite to the documentconveyance direction, all but the topmost document is returned to thedocument placement section 60.) Then, the document fed into the documentconveyance path 61 is conveyed by a document conveyance roller 44provided in the document conveyance path 61 so as to pass between thedocument read glass 31 and an opposed guide plate 46 provided in thedocument conveyance path 61, and then discharged by a paper dischargeroller 47 to a paper discharge tray 48.

Upon conveying the document, the light source 33 a of the first scanner33 illuminates the document through the document read glass 31, thereflected light from the document is reflected by the respective mirrors33 b and 34 b of the first and second scanners 33 and 34 and is guidedto the imaging lens 36. The imaging lens 36 images the image of thedocument on the CCD 37, and the CCD 37 reads the image of the document.

The image of the document read by the CCD 37 is output from the CCD 37as an analog signal, and this analog signal is A/D converted to adigital signal. This digital signal (image data) is input to the opticalscanning device 11 of the process unit 4 after being subjected tovarious image processing, and the image indicated by the image data isformed on the recording paper in the process unit 4.

Next, the document feeder 100 in this example will be described indetail. FIG. 2 is a perspective view of the document feeder 100. Asillustrated in FIG. 2, the document feeder 100 includes the documentplacement section 60, document conveyance path 61 (see FIG. 1), paperfeeder 62 (see FIG. 1), cover 71, a rear surface cover 75, a top surfacecover 77, and the notifier 80.

The document placement section 60 is disposed above the operation panel9 operated by the operator, and is disposed at the rear of the operationpanel 9 when viewed from the operation panel 9 side. The documentplacement section 60 is configured to allow a plurality of documents tobe placed. The document conveyance path 61 (see FIG. 1) is a path forconveying a document placed on the document placement section 60. Thepaper feeder 62 pulls out a document placed on the document placementsection 60 by the pickup roller 41 (see FIG. 1) and feeds the documentinto the document conveyance path 61.

The direction in which the document placed on the document placementsection 60 is fed by the paper feeder 62 into the document conveyancepath 61 is defined as a document conveyance direction DT1. In thisembodiment, the document conveyance direction DT1 is set to a directionfrom right to left. In other words, the document conveyance directionDT1 and the front-rear direction are orthogonal, and one of thehorizontal directions orthogonal to the document conveyance directionDT1 is a front side F of the apparatus where the operation panel 9 isprovided.

The cover 71 is disposed on the document feeder 100 on the front side Fof the apparatus so as to cover one side surface in a directionorthogonal to the document conveyance direction DT1 of the documentconveyance path 61 and the paper feeder 62. In other words, the cover 71covers the front side F of the apparatus in the side portions of thepaper feeder 62 and the document conveyance path 61.

The cover 71 has a first side surface 72 and a second side surface 73.The first side surface 72 is a surface that is disposed along thedocument conveyance direction and is formed toward the front side F ofthe apparatus. The second side surface 73 is a surface that is formedtoward a right side R of the apparatus. In other words, the second sidesurface 73 is a surface disposed to face in the opposite direction tothe document conveyance direction DT1. Further in other words, thesecond side surface 73 is a surface disposed in a direction intersectingthe document conveyance direction from the end of the paper feeder 62side of the first side surface 72 toward the document placement section60. That is, the first side surface 72 and the second side surface 73are adjacent surfaces that are disposed to be substantially orthogonalto each other. The first side surface 72 and the second side surface 73are formed to be continuous through the corner portions.

The rear surface cover 75 is disposed on a rear side B of the documentfeeder 100. The rear surface cover 75 covers the rear side B of theapparatus in the side portions of the paper feeder 62 and the documentconveyance path 61.

The top surface cover 77 is disposed on an upper surface side U of thedocument feeder 100. The top surface cover 77 covers the upper surfaceside U of the paper feeder 62 and the document conveyance path 61. Thetop surface cover 77 constitutes a document passage section 78 throughwhich a document fed by the paper feeder 62 passes. The top surfacecover 77 has a top surface cover end 771 constituting an upper end ofthe document passage section 78.

The notifier 80 notifies the user of information on the documentplacement section 60 by causing the displayer 85 to glow. The displayer85 is provided at the upper part of the cover 71 and near the cornerwhere the first side surface 72 and the second side surface 73 arecontinuous. The notifier 80 will be described in detail below.

FIG. 3 is a perspective view of a part of the cover 71 being cut off inthe vicinity of the notifier 80. As illustrated in FIG. 3, the notifier80 includes a light guide 81, a support case 91, and a light source 95.

The notifier 80 is configured, for example, to notify the user by lightthat a document has been placed on the document placement section 60 (orthat a document remains). In this case, a sensor (not illustrated) thatdetects whether a document is placed on the document placement section60 is disposed, for example, on the document placement section 60. Whena controller (not illustrated) provided in the main body 8 of the imageforming apparatus 1 detects, on the basis of the detection signal fromthe sensor, that a document is placed on the document placement section60, the light source 95 of the notifier 80 is lit.

The information to be notified by the notifier 80 may be informationother than the presence or absence of a document, as long as theinformation is related to the document placement section 60. Inaddition, the notification of information by light may be other thanlighting on and off. For example, the notification may be by flashing orchanging the light color.

The light guide 81 is a member that guides light from the light source95 and emits the light to the outside. The light guide 81 is formed of aresin material having translucency. The light guide 81 includes a lightguide base 82 and an elongated protrusion 83.

The light guide base 82 is a portion disposed on the inner surface sideof the cover 71. The light guide base 82 is a thin plate-shaped memberformed in an approximately L-shape in plan view along the inside nearthe corner of the cover 71.

The elongated protrusion 83 is a rib-like portion provided on theoutside of the light guide base 82. The elongated protrusion 83 isformed in an approximately L-shape in plan view along the light guidebase 82. The elongated protrusion 83 constitutes the displayer 85 of thenotifier 80. The surface of the elongated protrusion 83 is formed with aminute unevenness in such a manner that light from the light source 95can be diffusely reflected and the light can be emitted from the entiredisplayer 85. In this embodiment, an emboss finish that diffuselyreflects the light is applied as the minute unevenness.

The cover 71 is formed with a slit 74 near the corner where the firstside surface 72 and the second side surface 73 are continuous. The slit74 is formed to extend horizontally on the first side surface 72 and thesecond side surface 73, respectively. The slit 74 is formed in such amanner that, with the light guide 81 disposed on the inner surface sideof the cover 71, the elongated protrusion 83 of the light guide 81 isfitted and the elongated protrusion 83 is visible from the outside asthe displayer 85.

The displayer 85 is a part that displays information on the documentplacement section 60 by light. The displayer 85 is constituted by theelongated protrusion 83 being exposed from the slit 74 of the cover 71.The displayer 85 includes a first displayer 86 and a second displayer87.

The first displayer 86 is disposed on the first side surface 72 of thecover 71. The second displayer 87 is disposed on the second side secondside surface 73 of the cover 71 so as to face the document placementsection 60. In the present embodiment, the first displayer 86 and thesecond displayer 87 are respectively horizontally disposed andintegrally formed. The first displayer 86 and the second displayer 87are not limited to being horizontal, but may be disposed at an angle tothe horizontal direction, respectively.

When the horizontal length of the first displayer 86 is set to be L1 andthe vertical length of the first displayer 86 is set to be H1, thehorizontal length L1 of the first displayer 86 is set to be larger thanthe vertical length H1.

In addition, when the horizontal length of the second displayer 87 isset to be L2 and the vertical length of the second displayer 87 is setto be 112, the horizontal length L2 of the second displayer 87 is set tobe larger than the vertical length 112.

That is, the first displayer 86 and the second displayer 87 are set insuch a manner that the horizontal lengths L1 and L2 are longer than thevertical lengths H1 and 112, respectively. By setting in this manner,the second displayer 87 is disposed on the second side surface 73 in anelongated manner toward the document placement section 60.

Furthermore, if an extension of the top surface cover end 771 isrepresented by a virtual line LP1 (see FIG. 3), the displayer 85 issubstantially disposed on the extension line LP1 of the top surfacecover end 771. The displayer 85 being disposed substantially on theextension line LP1 means that the second displayer 87 of the displayer85 is disposed approximately parallel to the extension line LP1 and thatthe second displayer 87 is disposed in the vicinity of the extensionline LP1. The vicinity is, for example, a state where the seconddisplayer 87 touches an area whose vertical distance from the extensionline LP1 is less than or equal to the vertical length H2 of the seconddisplayer 87 in a state where the second displayer 87 is viewed from theright side to the left side. In addition, the second displayer 87 andthe extension line LP1 may be disposed to overlap with each other whenviewed from the right side to the left side.

Thus, since the second displayer 87 disposed on the second side surface73 toward the document placement section 60 and the first displayer 86disposed on the first side surface 72 are disposed adjacent to eachother and in the vicinity of the extension line LP1, the operator's lineof sight can be continuously guided to the document placement section 60along the top surface cover end 771 disposed at the end where thedisplayer 85 extends. This can make it easier for the operator tounderstand that the information notified by the notifier 80 isinformation on the document placement section 60 and the intent of thenotified information.

The support case 91 is a member for attaching the light guide 81 and thelight source 95 on the inner surface side of the cover 71 and also forpreventing the light of the light source 95 from leaking into theinterior of the cover 71.

The light source 95 is a part that, when lit, emits light so as to emitlight to the light guide 81. In the present embodiment, an LED (LightEmitting Diode) is used as the light source 95.

FIG. 4 is a cross-sectional view of a state where the displayer 85 ofthe notifier 80 is cut horizontally, seen from above. As illustrated inFIG. 4, the elongated protrusion 83 of the light guide 81 is formedhigher than the thickness of the plate of the cover 71. Therefore, theelongated protrusion 83 is disposed in such a manner that a part of theelongated protrusion 83 protrudes outward from the slit 74 of the cover71. The portion protruding outwardly from the outer surface of the cover71 is a protrusion 88 of the displayer 85. In this embodiment, theprotruding amount of the protrusion 88 relative to the outer surface ofthe cover 71 is a height D1. The protrusion 88 makes it easy to see thelight of the displayer 85 not only from the side but also from above.

FIG. 5 is a perspective view of the cover 71 and the second displayer87, seen from diagonally behind. As illustrated in FIGS. 4 and 5, arecess 67 is formed in the second side second side surface 73 of thecover 71 near the end of the second displayer 87. The recess 67 isformed in an area adjacent to the second displayer 87 and closer to thedocument placement section 60 than the second displayer 87. In otherwords, the recess 67 is formed on a rear side B of the second displayer87. The recess 67 is formed to emit light from the second displayer 87to the document placement section 60 side. In this embodiment, asillustrated in FIG. 4, the amount of recess 67 recessed into the outersurface of the cover 71 is D2.

As illustrated in FIG. 5, the recess 67 is formed in the second sidesurface 73 of the cover 71, thereby increasing the difference in heightbetween the recess 67 and the protrusion 88.

By forming the recess 67 in the cover 71, the light from the displayer85 is emitted to the document placement section 60 side, and the rangein which the light can be seen can be widened, thereby improving thevisibility of the notifier 80. In addition, the gradation of light anddark caused by light hitting the recess 67 can improve the visibility ofthe notifier 80.

Referring back to FIG. 4, the support case 91 is a member for attachingthe light guide 81 and the light source 95 to the inner surface side ofthe cover 71. The support case 91 has a first opening 92, a secondopening 93, and a wall 94. The wall 94 blocks the light from the lightsource 95 in such a manner that the light is not emitted from other thanthe first opening 92. As a result, it is possible to suppress the lightfrom the light source 95 from leaking into the interior of the cover 71.The first opening 92 is an opening for attaching the light guide 81 andemitting the light from the light source 95 to the outside through thelight guide 81. The second opening 93 is an opening for attaching thelight source 95. The second opening 93 is provided at a position facingthe first opening 92. The second opening 93 to which the light source 95is attached is provided at a position facing the first opening 92 towhich the light guide 81 is attached. As a result, the light source 95can be easily attached and replaced, and the light from the light source95 can be prevented from leaking into the interior of the cover 71.

FIG. 6 is an exploded perspective view illustrating a state ofassembling the support case 91, light guide 81, and light source 95 ofthe notifier 80. FIG. 7 is a perspective view illustrating a state ofassembling the support case 91, light guide 81, and light source 95 ofthe notifier 80, which are partially cut off.

As illustrated in FIGS. 6 and 7, the light guide 81 is attached to thefirst opening 92 of the support case 91, and the light source 95 isattached to the second opening 93. An LED, which is the light source 95,is provided on a substrate 96. The light source 95 is disposed in thesecond opening 93 so as to irradiate light into the support case 91, andthe substrate 96 is fixed to the support case 91. A translucentdiffusion sheet 97 is attached to the back side of the light guide 81.The diffusion sheet 97 is attached to prevent direct visibility of thelight source 95 from outside.

The assembled support case 91, light guide 81, and light source 95 areattached from the back (rear) side of the cover 71.

The first side surface 72 and the second side surface 73 of the cover 71are provided with the slit 74 formed in accordance with the shape of theelongated protrusion 83. The elongated protrusion 83 is fitted into theslit 74 from the back side of the cover 71, and the support case 91 isfixed to the cover 71 with the elongated protrusion 83 exposed from theslit 74.

With the above configuration, the displayer 85 of the notifier 80 canguide the operator's line of sight to the document placement section 60.This can make it easier for the operator to understand that theinformation notified by the notifier 80 is information on the documentplacement section 60 and the intent of the notified information.

Other Embodiments

The embodiment disclosed herein is an exemplification in all points, andnever provides a basis for limited interpretation. Therefore, thetechnical scope of the present invention is not interpreted on the basisof only the above-described embodiment but is defined on the basis ofthe description in claims. Furthermore, the technical scope of thepresent invention includes all the modifications within the meaning andthe scope equivalent to the claims.

For example, in the present embodiment, the first displayer 86 and thesecond displayer 87 are integrally formed. However, the first displayer86 and the second displayer 87 are not limited to this. For example, thefirst displayer and the second displayer may be separate from eachother, and the first displayer and the second displayer may be disposedseparately on the first side surface 72 and the second side surface 73of the cover 71. Even in this case, the operator's line of sight can beeasily guided to the document placement section 60 that is disposed atthe end in the direction in which the first displayer and the seconddisplayer are lined up.

The present invention can be applied to an electrophotographic imageforming apparatus and a document feeder provided in the image formingapparatus.

What is claimed is:
 1. A document feeder comprising: a documentplacement section where a plurality of documents can be placed; adocument conveyance path that conveys documents placed on the documentplacement section; a paper feeder that feeds the documents placed on thedocument placement section to the document conveyance path; a cover thatcovers side surfaces of the document conveyance path and the paperfeeder in a direction orthogonal to a document conveyance direction; anda notifier that notifies information on the document placement section,wherein the cover has a first side surface disposed along the documentconveyance direction and a second side surface disposed from an end ofthe first side surface on the paper feeder side toward the documentplacement section, wherein the notifier includes a displayer thatdisplays the information by light, wherein the displayer includes afirst displayer disposed on the first side surface and a seconddisplayer disposed on the second side surface toward the documentplacement section, and wherein the first displayer and the seconddisplayer each have a horizontal length that is longer than a verticallength.
 2. The document feeder according to claim 1, wherein the firstside surface and the second side surface are formed to be contiguous,and wherein the first displayer and the second displayer are integrallyformed.
 3. The document feeder according to claim 1, wherein the firstdisplayer and the second displayer are individually disposed on thefirst side surface and the second side surface, respectively.
 4. Thedocument feeder according to claim 1, wherein the second side surfacehas a recess that emits light from the second displayer to the documentplacement section side in an area adjacent to the second displayer andcloser to the document placement section than the second displayer. 5.The document feeder according to claim 1, further comprising a topsurface cover that covers a top surface side of the paper feeder and thedocument conveyance path, wherein the top surface cover has a topsurface cover end that constitutes an upper end of a document passingportion through which a document fed by the paper feeder passes, andwherein the displayer is substantially disposed on an extension line ofthe top surface cover end.
 6. The document feeder according to claim 1,wherein the notifier includes a light source that emits light to thedisplayer, and wherein the displayer has translucency that allows thelight from the light source to pass through, and has a protrusion thatprotrudes outward from an outer surface of the cover.
 7. The documentfeeder according to claim 6, wherein the displayer has a minuteunevenness that diffusely reflects the light from the light source. 8.The document feeder according to claim 6, wherein the notifier includesa support case for attaching the light source and the displayer to thecover, and wherein the support case has a first opening to which thedisplayer is attached, and a wall that blocks light from the lightsource in such a manner that the light is not emitted from other thanthe first opening.
 9. The document feeder according to claim 8, whereinthe support case has a second opening to which the light source isattached, and wherein the second opening is provided at a positionfacing the first opening.
 10. An image forming apparatus comprising thedocument feeder according to claim 1.